From a33870996b00f18179048debf183f1cb5c499593 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Fri, 21 Feb 2020 00:28:45 -0300
Subject: vk_state_tracker: Implement dirty flags for depth bias

---
 src/video_core/renderer_vulkan/vk_rasterizer.cpp    | 3 +++
 src/video_core/renderer_vulkan/vk_state_tracker.cpp | 9 +++++++++
 src/video_core/renderer_vulkan/vk_state_tracker.h   | 5 +++++
 3 files changed, 17 insertions(+)

(limited to 'src/video_core')

diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.cpp b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
index 207ef0f0d..be2c4d149 100644
--- a/src/video_core/renderer_vulkan/vk_rasterizer.cpp
+++ b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
@@ -1015,6 +1015,9 @@ void RasterizerVulkan::UpdateScissorsState(Tegra::Engines::Maxwell3D& gpu) {
 }
 
 void RasterizerVulkan::UpdateDepthBias(Tegra::Engines::Maxwell3D& gpu) {
+    if (!state_tracker.TouchDepthBias()) {
+        return;
+    }
     const auto& regs = gpu.regs;
     scheduler.Record([constant = regs.polygon_offset_units, clamp = regs.polygon_offset_clamp,
                       factor = regs.polygon_offset_factor](auto cmdbuf, auto& dld) {
diff --git a/src/video_core/renderer_vulkan/vk_state_tracker.cpp b/src/video_core/renderer_vulkan/vk_state_tracker.cpp
index 0e00a9079..c75caaa56 100644
--- a/src/video_core/renderer_vulkan/vk_state_tracker.cpp
+++ b/src/video_core/renderer_vulkan/vk_state_tracker.cpp
@@ -30,6 +30,7 @@ Flags MakeInvalidationFlags() {
     Flags flags{};
     flags[Viewports] = true;
     flags[Scissors] = true;
+    flags[DepthBias] = true;
     return flags;
 }
 
@@ -76,6 +77,13 @@ void SetupDirtyScissors(Tables& tables) {
     FillBlock(tables[0], OFF(scissor_test), NUM(scissor_test), Scissors);
 }
 
+void SetupDirtyDepthBias(Tables& tables) {
+    auto& table = tables[0];
+    table[OFF(polygon_offset_units)] = DepthBias;
+    table[OFF(polygon_offset_clamp)] = DepthBias;
+    table[OFF(polygon_offset_factor)] = DepthBias;
+}
+
 } // Anonymous namespace
 
 StateTracker::StateTracker(Core::System& system)
@@ -87,6 +95,7 @@ void StateTracker::Initialize() {
     SetupDirtyRenderTargets(tables);
     SetupDirtyViewports(tables);
     SetupDirtyScissors(tables);
+    SetupDirtyDepthBias(tables);
 
     auto& store = dirty.on_write_stores;
     store[RenderTargets] = true;
diff --git a/src/video_core/renderer_vulkan/vk_state_tracker.h b/src/video_core/renderer_vulkan/vk_state_tracker.h
index ba8f3a854..088b47145 100644
--- a/src/video_core/renderer_vulkan/vk_state_tracker.h
+++ b/src/video_core/renderer_vulkan/vk_state_tracker.h
@@ -21,6 +21,7 @@ enum : u8 {
 
     Viewports,
     Scissors,
+    DepthBias,
 };
 
 } // namespace Dirty
@@ -41,6 +42,10 @@ public:
         return Exchange(Dirty::Scissors, false);
     }
 
+    bool TouchDepthBias() {
+        return Exchange(Dirty::DepthBias, false);
+    }
+
 private:
     using Flags = std::remove_reference_t<decltype(Tegra::Engines::Maxwell3D::dirty.flags)>;
 
-- 
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